Abstract: A group of young men were analyzed through biochemical methods. In this group, the deficient rate of riboflavin reached 42.9%, the rate of iron deficient anaemia was 37.5 % and the abnormal rate of free erythrocyte protoporphyrin(FEP)was 11.0%. The mean concentration of haemoglobin in the riboflavin deficiency group was lower than that of riboflavin normal group, but the contents of FEP weren′t different in two groups. The rate of iron deficient anaemia in the riboflavin deficiency group was significantly higher than that in the riboflavin normal group(P< 0.05). The level of BGRAC showed significantly negative correlation with Hb and HCT(P< 0.05), but it didn′t show significant correlation with FEP in this experiment. The study suggested that riboflavin deficiency was interrelated with anaemia, but not with FEP which reflect the second phase of iron deficiency.

Key words: iron deficiency, riboflavin, iron deficient anaemia